视频资讯(2007-7-19)

 

视频资讯

PeterLee，2007-7-19

 

【标准官方站】

JVT workshop

JVT Geneva 会议(29 June – 5 July, 2007)

JVT文档下载：此次会议提交的文档大部分是SVC和MVC方面的。

http://ftp3.itu.ch/av-arch/jvt-site/2007_06_Geneva/

 

 

AVS

AVS工作组第二十一次大会在哈工大召开

 

AVS标准文档（视频部分）下载：中华人民共和国国家标准信息技术先进音视频编码

Link1 link2

 

【开源项目】

XVID

Thursday 28. of June 2007 Xvid 1.1.3 released

 

x264

x264 有可能支持 H.264 SVC，见x264-devel maillist讨论的内容：

Are there any plans on adding H.264/SVC functionality to x264?

Thanks.

Alex.

 

There have been lots of iinqueries about SVC lately. If one or more of the

interested parties wants to sponsor development, I will do it.

--Loren Merritt （编者注：Loren是目前x264的主要开发和维护人员之一）

 

Geneva is the "validation meeting", and is not finished yet. It also

speeks about MVC.

So, no, the standard is not out, but the last draft will not move a lot :

JVT-W201 -- http://ftp3.itu.ch/av-arch/jvt-site/2007_04_SanJose/JVT-W201.zip

 

Not "release" yet.

There are differents kinds of scalability in it :

- spatial scalability in order to adapt spatial resolution on the "client-side"

- temporal scalability ... temporal...

- fine granularity scalability based on enhancement layer ( e.g the client receives a base quality layer, and if the channel allows it or its ressources etc., the client will be able to receive and decode a final stream composed of the base layer + some enhancement layers)

- etc.

For further informations you should look around this :

http://ip.hhi.de/imagecom_G1/savce/index.htm

 

FGS (fine grain scalability) has been removed from the latest joint

draft (which is now considered final). What is left is spatial

scalability, temporal scalability, coarse grain and medium grain

scalability.

 

I was already studying the x264 code and the JSVM reference software

when you started this SVC email thread. I don't have much code yet,

but maybe I can show you what I have when it gets more mature. Perhaps

then could you give me general advice or tell me if I'm going in a

wrong direction. It would be great if my work could contribute to the

project.